An organism’s particular role in its habitat, or how it makes its living, is called its a. carrying capacity. b. ecosystem. c. competition. d. niche.

that scientist would be robert hooke

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation:

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.